Regular Day Time Sitter Needed!

Hello! Im a stay at home mom looking for looking a gentle, energetic regular day time sitter! I have a 5-year-old daughter who attends half-day preschool classes 4 days a week, a 2. 5-year-old daughter who attends half days at the same school 2 days a week, and a 16 mo old son who stays home with me. My kids are very active and love to play pretend, play outside, and color/paint. I typically need someone who can take care of 1-2 of my kids during doctor appointments, gym class/swim lessons or other scheduled activities. Our needs could range from once a week to a few times a week depending on the need. Daytime availability a must. Must also be comfortable with our sweet elderly dog Bentley.